To Room It May Concern

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Across
  1. 2. A long, hollow cylinder
  2. 4. Kingdom or domain
  3. 5. The _____ is a grid of numbers used in mathematics.
  4. 6. Greek mountain, home of the gods
  5. 10. Australia's national floral emblem
  6. 11. A famous theatre associated with William Shakespeare
  7. 13. A small group of trees
  8. 15. The concert descended into utter _____ when the power failed.
  9. 16. The leafy roof of a forest
Down
  1. 1. A place where roads or railways meet
  2. 3. Tokyo district famous for youth fashion and street culture
  3. 5. A collection of wild animals kept in captivity for exhibition
  4. 7. The London _____ is famous for its underground train system.
  5. 8. She has a positive _____ on life.
  6. 9. A castle's stronghold or a fruit's central part
  7. 12. A complex network of paths or passages; a maze
  8. 14. A whirling mass of air or water
  9. 17. A popular product invented in 1948